BDS full leaf packs?

[TOEHEAD]

Picked up the new BDS full leaf packs the other day and I am installing them as we speek, just wondering if anyone else is running these and what kinda measurements you all were getting out of them. I have there 3" front springs as well and I am debating whether or not to put 3/4" spacers up front.....

Any ideas?
Thanks!
TOEHEAD